The giant-impact hypothesis posits that billions of years ago a Mars-sized body named Theia collided with the early Earth.

The European Southern Observatory's Very Large Telescope (VLT) imaged both of the planets directly, and PDS 70b has the ...

The origin of the Moon has fascinated scientists for decades. The most widely accepted theory suggests that the Moon formed ...

Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

Aimed at the nearby star PDS 70, the James Webb Space Telescope is watching newborn planets take shape before our eyes in ...